How much depth surface is drilled off from an adult's natural front tooth (vs. all of it to gumline for a crown) to accommodate for a dental veneer?

Approx 1 mm: A very small amount of tooth surface is removed. After all, room is needed for the veneer itself, and if too thin, it can be too transparent and fail to change the tooth color. Make the veneers with porcelain that is opaque, and it looks chalky and lifeless. Bucally malpositioned teeth may require more reduction to look aligned with the adjacent teeth.

None to 2mm: Depending on the type of veneer and material used this amout can be zero to 2mm. Traditional veneers used to have the most reductions, however, with the advent of newer products, this reduction can now be as little as 0.2 mm. Lumineers require the least amount of reduction. Think of this treatment as a press on nail for our teeth.

Thin: See if your dentist will do the least to no reduction for your veneers.

Little to none...: Veneers can be so thin that zero reduction is needed. Sometimes, depending on how much needs to be "masked" by the veneer and how lifelike you want it to look, more will be required. The best way to determine this is to consult with you dentist and customize a plan for your teeth.

And the answer is:: As much as is needed. Generally from 0 to 2mm. I would think that patients would want the best looking, strongest ; healthiest restoration for their teeth and in this case veneers and not be hung up with 'the amount' drilled off. It varies from tooth to tooth depending upon too many factors to even list in the little space provided for us. Ask a dentist whom you trust for your particular situation.